rituximab

Definition of rituximab

rituximab

(rih-TUK-sih-mab)
A drug used alone or with other drugs to treat adults with certain types of B-cell non-Hodgkin lymphoma or chronic lymphocytic leukemia that are CD20 positive. It is also being studied in the treatment of other conditions and types of cancer. Rituximab binds to a protein called CD20, which is found on B cells (a type of white blood cell) and some types of cancer cells. This may help the immune system kill cancer cells. Rituximab is a type of monoclonal antibody. Also called Rituxan, Ruxience, and Truxima.

Source: NCI Dictionary of Cancer Terms